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diff --git a/dis6502.1 b/dis6502.1
index 5234264..a0d9ea3 100644
--- a/dis6502.1
+++ b/dis6502.1
@@ -1,14 +1,34 @@
-.TH DIS6502 1 "12 SEP 2003"
-.UC 4
+.TH DIS6502 1 "16 MAY 2023" "0.15+2857fc3_20180311" "SlackBuilds.org"
.SH NAME
dis6502 \- Disassemble 6502 object code
.SH SYNOPSIS
.I dis6502
[
-.I \-b
+.B \-r \fIaddress\fP
+|
+.B \-b
+|
+.B \-l
+|
+.B \-c
]
[
-.I -p \fIpfile\fP
+.B \-a
+]
+[
+.B \-p \fIpfile\fP
+]
+[
+.B \-e \fIaddress\fP
+]
+[
+.B \-v \fIaddress\fP
+]
+[
+.B \-7
+]
+[
+.B \-P
]
.I file
.LP
@@ -24,41 +44,49 @@ process. The output includes a cross reference.
The disassembly process is a two pass operation: First the program
flow is traced starting with the init and run parameters in the file
headers. The dump routine then prints out the information.
-.PP
-The command line options are:
+.SH OPTIONS
.TP
-.I \-r \fIaddress\fP
+.B \-r \fIaddress\fP
Raw binary input file, with the first byte of the file being associated with
the specified address.
.TP
-.I \-b
+.B \-b
Atari boot format input file.
.TP
-.I \-l
+.B \-l
Atari load format input file.
.TP
-.I \-c
+.B \-c
Commodore format input file.
.TP
-.I \-p \fIpfile\fP
+.B \-a
+Assembly output.
+.TP
+.B \-p \fIpfile\fP
Read in the predefine file \fIpfile\fP.
Up to 20 \fI-p\fP options may be included.
.TP
-.I \-v \fIaddress\fP
+.B \-e \fIaddress\fP
+Use an alternate entry point address.
+.TP
+.B \-v \fIaddress\fP
Use an alternate address for the reset and interrupt vectors.
.TP
-.I \-7
+.B \-7
Mask off MSB of character data.
-.PP
-Lines in pfile consist of:
+.TP
+.B \-P
+Decode Apple ProDOS MLI calls.
+.SH PREDEFINE FILES
+Lines in \fIpfile\fP consist of:
.PP
name .eq address
.PP
.stop address
.PP
.trace address
-.PP
-.I Address
+.PP
+.I Address
may be a decimal number or
may be a hexadecimal number (the first character of the number
should be "$"). For example, "$21b5" is
@@ -66,12 +94,11 @@ the hexadecimal number 21b5.
.I Name
is a sequence of numbers and characters starting with a
letter.
-.I .trace
+.I .trace
causes
-the trace process to continue at the address given.
+the trace process to continue at the address given.
.I .stop
causes the
trace process to stop at the address given.
.SH AUTHORS
Robert Bond, Udi Finkelstein, and Eric Smith
-.SH BUGS
|
